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3 years ago

22. Starting with x=0.393939, express x as a fraction in simplest form.

1 answer:

8 0

393939/1000000

Free 5 points !

Which word does not belong?

• descubrir

•resolver

•platicar

•averiguar

ANSWERS

1.) C. platicar

2.) D. cuerpo

3.) C. a murderer

4.) B. closed

5.) B. to kill

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Martina made a scale drawing of a swimming pool. The scale she used was 1 inch : 4 feet. The actual length of the diving board i

N76 [4]

3 inch
12/4 is 3 so in the drawing, the diving board is 3 inch
Hope this helped :)

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3 years ago

a rectangle is dilated using a scale factor of 6. The image us then dilated using a scale factor 1/3.What scale facotr could you

Mandarinka [93]

You multiply by 2 because if you take any number let's say 15, 15x 6 is 90 1/3 of 90 is 30 and 15 is half of thirty. this works with all numbers so the answer is dilate by a scale factor of 2.

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3 years ago

Suppose that P(A|B)=0.2, P(A|B')=0.3, and P(B)=0.7. What is the P(A)? Round your answer to two decimal places (e.g. 98.76).

nata0808 [166]

Answer: $P(A) = 0.23$

Step-by-step explanation:

Given :

$P(A/B) = 0.2$

$P(A/B^{1})=0.3$

$P(B)= 0.7$

$P(A) = ?$

From rules of probability :

$P(A) = P(AnB) + P(A n B^{1})$ ........................... equation *

$P(A n B)$ can be written as $P(A/B)$ x $P(B)$

Also , $P(A/B^{1})$ can be written as $P(A/B^{1})$ x $P(B^{1})$

substituting into equation * , we have

$P(A) = P(A/B)$ $P(B) + P(A/B^{1})P(B^{1})$

since P(B) = 0.7, then $P(B^{1}) = 1 - P(B) = 0.3$

so , substituting each values , we have

$P(A) = (0.2)(0.7) + (0.3)(0.3)$

$P(A) = 0.14 + 0.09$

$P(A) = 0.23$

4 0

4 years ago

Assume that lines that appear to be tangent are tangent. O is the center of the circle. What is the value of x?

Mashcka [7]

9514 1404 393

Answer:

x = 20, or 125

Step-by-step explanation:

We cannot tell the angle x is intended to refer to. So, here are two answers. Choose the one you think applies.

The triangle that includes both marked angles is a right triangle. (The tangent meets the circle at right angles to the radius.) So, the angle x° at the external point is the complement of the marked central angle.

x° = 90° -70°

x = 20

If x° is referring to the exterior angle associated with the isosceles triangle within the circle, then its measure is the supplement of the interior base angle of that triangle. It is ...

x° = 180° -(180° -70°)/2 = 90° +70°/2

x = 125

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3 years ago

Which expressions are equivalent to this expression?

choli [55]

We will start by expanding (or multiplying through) with 3(n+4)

We get:
3n + 12
3n can be expanded to equal 2n+n, so the correct answer will be
2n + 12 + n

Simply add the options together and see what one matches 3n + 12

2n + 12 + n = 3n + 12, which in turn equals 3(n+4)

ANSWER: 2n + 12 + n

8 0

3 years ago